feat: update negative count error message in repeatStr

- Added an emoji to the error string.
- Included try/catch blocks in tests to verify manual error capturing.
- Updated Jest assertions to match the new error format.

Author: Grajales-K

Sprint-3/2-practice-tdd/repeat-str.js

@@ -1,8 +1,8 @@
 function repeatStr(str, count) {
   if (count < 0) {
-    throw new Error("count cannot be negative");
+    throw new Error("count cannot be negative 😭");
   }
-  
+
   let result = "";
   for (let i = 0; i < count; i++) {
     result = result + str;
@@ -12,3 +12,20 @@ function repeatStr(str, count) {
 
 module.exports = repeatStr;
 
+
+// Case: Manual inspection of the Error object
+// We use try/catch to log the error message to the console
+// to verify it's working as expected without breaking the test suite.
+test("Should log the specific error message to the console", () => {
+  try {
+    repeatStr("hi", -3);
+  } catch (error) {
+    console.log("Verified Error Message ->", error.message);
+
+    // Check if the message is exactly what we defined
+    expect(error.message).toBe("count cannot be negative 😭");
+  }
+
+  // Also verify that it actually throws using Jest's built-in matcher
+  expect(() => repeatStr("hi", -3)).toThrow();
+});